Relates to MC-273770. I believe this was caused by inventory changes behind the scenes.
I would like to mention a spelling error in the description.
<blockquote> Throwable projectiles like snowballs, eggs, etc. are no rendered for the first 2 ticks when being nearby to prevent them from flashing on the screen.</blockquote>
After fixing this you can delete my coment.
Could someone correct the summary? Dismounting places you in the same space as you, not the same space as your mount. This can clearly be viewed in the attached video. Does not affect minecarts too.
Relates to MCPE-162215, same problem.
Java edition fix reverted in 25w03a. See MC-279494.
Still affects, making farmland with hoe MCPE-164731, MCPE-167133, MCPE-189880. This was not a valid parity issue.
Now fixed in 25w02a thanks to the fix for MC-189525. This should likely be marked as a duplicate.
As of snapshot 24w18a, this issue happens only when the crossbow does not have the Multishot enchantment. With Multishot, the crossbow behaves as it did in version 1.15.2 by moving up and down. (Confirmed in 25w02a as well.)
Relates to MC-212226.